Annual report pursuant to Section 13 and 15(d)

SETTLEMENTS, COMMITMENTS AND CONTINGENCIES - Options to Purchase or Lease Land and Buildings (Details)

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SETTLEMENTS, COMMITMENTS AND CONTINGENCIES - Options to Purchase or Lease Land and Buildings (Details) - Various Buildings And Land In Cripple Creak, Colorado
 1 Months Ended
Nov. 30, 2017
USD ($)
extension
Other Commitments [Line Items]  
Capitalized costs under purchase option $ 200,000
Number of extensions under purchase option | extension 4
Duration of purchase option extensions 1 month
Monthly purchase option extension costs $ 22,500
Option to purchase leased land $ 2,200,000
Term of operating lease if option is exercised 3 years
Rent expense under operating lease if exercised $ 200,000
Option to purchase land improvement with hotel 1,700,000
Option to purchase land improvement with residence $ 300,000